How much protection does a previous Covid-19 infection provide?
CNN's Dr. Sanjay Gupta talks to health experts about the levels of Covid-19 immunity people get from infection versus vaccination.
03:48 - Source: CNN
Latest Videos 17 videos
dr sanjay gupta new day iso 04192022
How much protection does a previous Covid-19 infection provide?
03:48
Now playing
- Source: CNN
SCREENGRAB China Spy Balloon Pop
Video shows moment US missile hits Chinese spy balloon
00:58
Now playing
- Source: CNN
biden vpx
Hear what Biden said after Chinese spy balloon was shot down
01:03
Now playing
- Source: CNN
costa rica balloon
Another suspected Chinese balloon spotted over Costa Rica
01:55
Now playing
- Source: CNN
Mt Wash observ orig thumb
Watch Mt. Washington endure historic wind chill of -108°F
01:09
Now playing
- Source: CNN
Phil Bump George Santos Split
Journalist finds something unusual in George Santos' campaign expenses
05:20
Now playing
- Source: CNN
Putin Yevgeny Prigozhin split
Could this man replace Putin? Hear Russian journalist's answer
03:53
Now playing
- Source: CNN
Haley Trump SPLIT
Smerconish: Why Trump wants Haley to run
03:12
Now playing
- Source: CNN
RomanStatue2
Sewer repair workers uncover ancient Roman sculpture
00:57
Now playing
- Source: CNN
mafia pizza chef
How a Mafioso was arrested while moonlighting as a pizza chef
01:57
Now playing
- Source: CNN
overtime bill maher
Reporter says this is Democrats' fatal flaw
01:02
Now playing
- Source: CNN
A balloon flies in the sky over Billings, Montana, U.S. February 1, 2023, in this picture obtained from social media.
Here's how spy balloons work
02:42
Now playing
- Source: CNN
black hiatory cruiser 2
'It's tone deaf': Finney on Black History Month police cruisers
03:03
Now playing
- Source: CNN
nightcap 02022023 clip 2 16x9
Should you feel guilty about not tipping? Etiquette expert weighs in
01:52
Now playing
- Source: CNN
dr robert waldinger smerconish iso 02 04 23
Harvard psychiatrist says this is the secret to happiness
05:13
Now playing
- Source: CNN
Michelle Yeoh Jackie Chan Split
Oscar nominee on how her role was offered to Jackie Chan
03:27
Now playing
- Source: CNN
video thumbnail robertson jenin pkg 2
'The whole place shook': Man describes what it was like when Israeli military raided his home
03:40
Now playing
- Source: CNN